|
1.
10 – 8 =
1
2
|
2.
6 + 14 =
20
2
|
3.
15 + 1 =
2
16
|
4.
20 + 0 =
2
20
|
|
5.
14 + 0 =
1
14
|
6.
16 + 3 =
2
19
|
7.
10 + 7 =
17
2
|
8.
3 – 1 =
2
1
|
|
9.
17 – 12 =
5
1
|
10.
18 – 17 =
1
2
|
11.
3 – 0 =
3
1
|
12.
3 – 0 =
3
1
|
|
13.
9 – 9 =
0
2
|
14.
6 – 3 =
3
1
|
15.
3 + 17 =
20
2
|
16.
14 – 14 =
0
2
|
|
17.
10 + 8 =
18
2
|
18.
12 – 11 =
1
2
|
19.
3 + 7 =
1
10
|
20.
17 – 0 =
17
2
|
|
1.
10 – 8 =
1
2
|
2.
6 + 14 =
20
2
|
3.
15 + 1 =
2
16
|
4.
20 + 0 =
2
20
|
|
5.
14 + 0 =
1
14
|
6.
16 + 3 =
2
19
|
7.
10 + 7 =
17
2
|
8.
3 – 1 =
2
1
|
|
9.
17 – 12 =
5
1
|
10.
18 – 17 =
1
2
|
11.
3 – 0 =
3
1
|
12.
3 – 0 =
3
1
|
|
13.
9 – 9 =
0
2
|
14.
6 – 3 =
3
1
|
15.
3 + 17 =
20
2
|
16.
14 – 14 =
0
2
|
|
17.
10 + 8 =
18
2
|
18.
12 – 11 =
1
2
|
19.
3 + 7 =
1
10
|
20.
17 – 0 =
17
2
|